Features. 20 x 30 x 1 in. EZ Flow Spun Fiberglass Disposable Furnace Filter.. Flat Panel Metal Retainer On Air Exit Side.. Only Up To MERV Rating 4 30 Day Filter.. Effective Against DustLint.. Pack of 12.. Dimension - 29.88 x 19.88 x 0.75 in.. Item Weight - 0.62 lbs.
- Lasts up to 30 days
- UL Class II
- Protects heating and air conditioning equipment
- Sturdy chipboard frame and metal retainer contributes to filter strength
- Maximum air flow
- Lasts up to 30 days
- UL Class II
- Protects heating and air conditioning equipment
- Sturdy chipboard frame and metal retainer contributes to filter strength
- Maximum air flow